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United States Patent | 6,107,620 |
Shiba ,   et al. | August 22, 2000 |
A photosensor includes a light emitting device, a light receiving device for receiving a side beam from said light emitting device, and a light diffusing member disposed between a side surface of said light emitting device and said light receiving device.
Inventors: | Shiba; Hiroshi (Numazu, JP); Mano; Hiroshi (Numazu, JP); Nagaoka; Tomoo (Mishima, JP) |
Assignee: | Canon Kabushiki Kaisha (Tokyo, JP) |
Appl. No.: | 777476 |
Filed: | December 30, 1996 |
Jan 09, 1996[JP] | 8-001407 |
Current U.S. Class: | 250/214R; 250/205; 399/41; 399/64 |
Intern'l Class: | H01L 031/00 |
Field of Search: | 250/205,214 R,214.1,214 AG,552 372/29,31,38 315/181,182,183,178,179,180 362/800,355 358/475,474,487 399/38,40,41,49,53,58,60,61,62,64 |
4182977 | Jan., 1980 | Stricklin, Jr. | 250/205. |
5132527 | Jul., 1992 | Karpati | 250/205. |
5151628 | Sep., 1992 | Osawa | 250/205. |
5309177 | May., 1994 | Shoji et al. | 346/108. |
5489771 | Feb., 1996 | Beach et al. | 250/205. |
5491329 | Feb., 1996 | Urakami et al. | 250/205. |
5742873 | Apr., 1998 | Kubo et al. | 399/98. |